One night in December of 2009, a man dug through a pile of papers and photo albums inside an RV parked in Texas. This man had recently bought the trailer after its previous owner had died, and it was full of junk that he was now trying to sort. As he rifled through documents, he stumbled on a stack of old notebooks. He opened one, and started reading – and as he did, he felt his heartbeat pick up. Because the notebooks were diaries – and they were full of handwritten rantings about demons, monsters, and a deal with the devil. But that wasn’t what really scared him. What really scared the man... was the writer’s horrifying confession.